Modified carbon nitride nanozyme as bifunctional glucose oxidase-peroxidase for metal-free bioinspired cascade photocatalysis
Pohang University of Science and Technology
Abstract
Nanomaterials-based biomimetic catalysts with multiple functions are necessary to address challenges in artificial enzymes mimicking physiological processes. Here we report a metal-free nanozyme of modified graphitic carbon nitride and demonstrate its bifunctional enzyme-mimicking roles. With oxidase mimicking, hydrogen peroxide is generated from the coupled photocatalysis of glucose oxidation and dioxygen reduction under visible-light irradiation with a near 100% apparent quantum efficiency. Then, the in situ generated hydrogen peroxide serves for the subsequent peroxidase-mimicking reaction that oxidises a chromogenic substrate on the same catalysts in dark to complete the bifunctional oxidase-peroxidase for…
Citation impact
- FWCI
- 23.95
- Percentile
- 100%
- References
- 66
Authors
9Topics & keywords
- Bifunctional
- Glucose oxidase
- Chemistry
- Hydrogen peroxide
- Peroxidase
- Photocatalysis
- Catalysis
- Nanomaterials